Step |
Hyp |
Ref |
Expression |
1 |
|
mulcl |
|
2 |
|
homval |
|
3 |
1 2
|
syl3an1 |
|
4 |
3
|
3expia |
|
5 |
4
|
3impa |
|
6 |
5
|
imp |
|
7 |
|
homval |
|
8 |
7
|
oveq2d |
|
9 |
8
|
3expa |
|
10 |
9
|
3adantl1 |
|
11 |
|
ffvelrn |
|
12 |
|
ax-hvmulass |
|
13 |
11 12
|
syl3an3 |
|
14 |
13
|
3expa |
|
15 |
14
|
exp43 |
|
16 |
15
|
3imp1 |
|
17 |
10 16
|
eqtr4d |
|
18 |
6 17
|
eqtr4d |
|
19 |
|
homulcl |
|
20 |
|
homval |
|
21 |
19 20
|
syl3an2 |
|
22 |
21
|
3expia |
|
23 |
22
|
3impb |
|
24 |
23
|
imp |
|
25 |
18 24
|
eqtr4d |
|
26 |
25
|
ralrimiva |
|
27 |
|
homulcl |
|
28 |
1 27
|
stoic3 |
|
29 |
|
homulcl |
|
30 |
19 29
|
sylan2 |
|
31 |
30
|
3impb |
|
32 |
|
hoeq |
|
33 |
28 31 32
|
syl2anc |
|
34 |
26 33
|
mpbid |
|